Downloading http://hackage.haskell.org/package/thorn-0.1.0.1/candidate/thorn-0.1.0.1.tar.gz Resolving dependencies... Configuring mtl-2.2.1... Haddock coverage: 100% ( 2 / 2) in 'Data.Profunctor.Trace' : can't load .so/.DLL for: libHStransformers-compat-0.4.0.4-DCQioW2d4vYEa3T0AmFBPv.so (libHStransformers-compat-0.4.0.4-DCQioW2d4vYEa3T0AmFBPv.so: cannot open shared object file: No such file or directory) cabal: '/opt/ghc/7.10.2/bin/ghc' exited with an error: : cannot satisfy -package-id comonad-4.2.7.2-e9c2382051416e4615737dba75d67fa0 (use -v for more information) Failed to install profunctors-4.4.1 cabal: Error: some packages failed to install: profunctors-4.4.1 failed during the final install step. The exception was: ExitFailure 1 thorn-0.1.0.1 depends on profunctors-4.4.1 which failed to install.